Howdy, I read the entire Hynol site, all 62 pages. It was interesting, but not your ordinary backyard project. They had a lot of shoddy engineering-design,and shoddy fabrication. It states there is not much gain above 10 atm, yet they went with 30 atm's. They would have saved a lot if they stuck with 10 atm's, as the entire shell, tee and reactor could have been much lighter. They would have saved more with a lighter superstructure. Why they first tried greencast is a mystery to me, greencast is used in ordinary 1 atm kilns. The design engineer should have known better. They could use the clinker amalgamated sand,ash and other residues) as an ingredient to make bricks. Thus keeping it out of our landfills. The feeding problem was obvious, anytime you create a shelf, things will collect there. It should have been a tube all the way through. They are useing a woodmeal and not woodchips, so a hammermill or grinders are needed. The soleniod valve in the feed pipe should be placed in a horizontal pipe so green woodmeal will not pack downwards on a closed valve. Five years seems to be a long time for a pilot project. But with all that grant money, I guess they dont need to be in a hurry. stephen
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